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Afla valorile lui a din egalitatile: 400m-a=138,a-68cm=276cm,72m:a=8m,a+267m=456m,98mm+a=216mm,7mxa=63m

Răspuns :

Răspuns:

Explicație pas cu pas:

400m-a=138m

a = 400m - 138m = 262m

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a-68cm=276cm

a = 68cm + 276cm = 344 cm

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72m:a=8m

a = 72m : 8 m = 9

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a+267m=456m

a = 456m - 267m = 189m

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98mm+a=216mm

a = 216mm - 98mm = 118 mm

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7mxa=63m

a  =63m : 7m = 9

400- a=138 a=400-138 a=262

a-68=276 a=68+276 a=344

72: a= 8 a=72:8 a=9

a+267=456 a=456-267 a=189

98+a=216 a=216-98. a=118

7×a=63 a=63:7 a=9